Cable Connection
11
incorrect connection of the TX and RX ports. In this case, swop the two connectors in the
one end of the optical fiber.
Caution:
The device uses laser to transmit signals in fibers. The laser meets the requirements of level 1
laser products. Routine operation is not harmful to your eyes, but do not look directly at the fiber
port when the device is powered on.
If the defined transmission distance of an SFP module is longer than 60km, do not use a short
fiber (<20km) for connection. If such a short fiber is used, the module will be burned.
4.3 1000Base-X, 10/100/1000Base-T(X) Combo port
As shown in following table, the 1000Base-X, 10/100/1000Base-T(X)Combo port consists of
one 1000Base-X SFP port(GX) and one 10/100/1000Base-T(X) Ethernet port, and only one
of the two ports can be used at one time, and the 1000Base-X SFP port has priority over
10/100/1000Base-T(X) Ethernet port. Plug the optical fiber and the twisted pair into GX and
GE respectively; GX can communicate normally and the GE will be disabled automatically.
The following table lists the relation of Gigabit SFP ports of Combo port and the
corresponding 10/100/1000 Base-T(X) Ethernet port.
Table 6 Combo port corresponding relation
Combo port
1000Base-X SFP port
10/100/1000Base-T(X) Ethernet port
(1)
GX1
GE1
(2)
GX2
GE2
……
……
……
